Member Advice on Cavity Wall Insulation

Not surprisingly, a lot of heat escapes through walls. If you have cavity walls - and about half the houses in this country do, you could reduce your fuel bills by up to one third by installing cavity wall insulation. If your home was built after the early 1930's you probably have a cavity, although houses built after 1980 will have been insulated as they were built. Cavity wall insulation is a job for specialist contractor and is NOT one you can do yourself. Ask a reputable contractor who specialises in cavity wall insulation to carry out a survey on the suitability of your house for cavity ... more

I decided to have cavity wall insulation installed early in 1997 after seeing an advertisement in our local paper offering a £200 grant towards the cost. Our house was built around 1930 and is an end terrace, thus having three external walls, so I thought cavity wall insulation would be a good investment and I was right! I contacted the firm recommended in the advertisement, Heatsavers Insulation Limited, who came and did a survey of my house. They asked questions about the house – any problems with damp, availability of access etc. and offered me a quote of £479 less the £200 grant ... more

Well if this is not the house that Jack Built, then i honestly do not know. One problem after another and we have found that building regulations were broke. So how were they broke, well apparently according to the bloke who come to do our cavity wall insulation yesterday, our house should have been done as it is under 10 years of age. I laughed and told him, this is the house that Jack Built and when he saw wooden double glazing he started to have doubts. So what made us have cavity wall insulation as you do not know whether or not it is done? Well the simple first sign is that our heating ... more

As I work in the building industry I know a vast range of manufactures and specified material that can be used in Cavity Wall Insulation. Manufacturers such as:- • Rockwool • Kingspan & #8226; Isowool Those listed above are probably the three main guys in the industry but their are others. There have been some major changes in the industry like, new U-values - increased thicknesses of insulation will be required for certain applications. New method for calculating U-values - the cold bridging of wall ties and roof fixings is taken into account and the type of edge of insulation ... more

Modern properties have insulation already built into the wall cavity to reduce heat loss. With older properties this cavity is empty ultimately leading to higher heating bills. Three years ago we had our cavity wall insulation fitted. Under a goverment grant scheme half the cost was paid for due to energy effeciency. The remaining half worked out at £250, this was for a semi. The job was initially viewed by their surveyor with the installation taking place a couple of weeks later. This took only half a day to do. The fiters drill a series of holes through the brickwork, a foam insulation is ... more